The Potomac River in the Mid-Atlantic region of the United States flows from the Potomac Highlands in West Virginia to Chesapeake Bay in Maryland. It is 405 miles long, with a drainage area of 14,700 square miles, and is the fourth-largest river along the East Coast of the United States. More than 6 million people live within its watershed.
Country: United States
State: West Virginia, Maryland, Virginia, District of Columbia
Cities: Cumberland, MD; Harpers Ferry, WV; Washington, D.C.; Alexandria, VA